MD1812K6-G Supertex, MD1812K6-G Datasheet

MOSFET & Power Driver ICs High Speed Quad

MD1812K6-G

Manufacturer Part Number

MD1812K6-G

Description

MOSFET & Power Driver ICs High Speed Quad

Manufacturer

Supertex

Type

High Side/Low Sider

Datasheet

1.MD1812K6-G.pdf (6 pages)

Specifications of MD1812K6-G

Rise Time

6 ns

Fall Time

6 ns

Supply Voltage (min)

4.5 V

Supply Current

7 mA

Maximum Power Dissipation

2200 mW

Maximum Operating Temperature

+ 125 C

Mounting Style

SMD/SMT

Package / Case

QFN-16

Number Of Drivers

Number Of Outputs

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Current page: 1 of 6
Download datasheet (410Kb)

Features

►

Applications

►

Supertex inc.

Typical Application Circuit

6.0ns rise and fall time

2.0A peak output source/sink current

1.8 to 5.0V input CMOS compatible

Smart logic threshold

Low jitter design

Quad matched channels

Drives two N and two P-channel MOSFETs

Outputs can swing below ground

Built-in level translator for negative gate bias

User-deﬁned damping for return-to-zero application

Low inductance quad ﬂat no-lead package

Thermally-enhanced package

Ultrasound PN code transmitter

Medical ultrasound imaging

Piezoelectric transducer drivers

Nondestructive evaluation

High speed level translator

High voltage bipolar pulser

Supertex inc.

Logic Inputs

3.3V CMOS

High Speed Quad MOSFET Driver

0.22μF

INA

INB

INC

IND

+10V

GND

●

1235 Bordeaux Drive, Sunnyvale, CA 94089

VDD

Supertex

VSS

MD1812

VNEG

0.47μF

OUTG

OUTC

OUTD

OUTA

OUTB

General Description

The Supertex MD1812 is a high-speed quad MOSFET driver. It is

designed to drive two N and two P-channel high voltage DMOS

FETs for medical ultrasound applications but may be used in any

application that needs a high output current for a capacitive load.

The input stage of the MD1812 is a high-speed level translator that

is able to operate from logic input signals of 1.8 to 5.0V amplitude.

An adaptive threshold circuit is used to set the level translator

threshold to the average of the input logic 0 and logic 1 levels.

The level translator uses a proprietary circuit, which provides DC

coupling together with high-speed operation. The output stage of

the MD1812 has separate power connections enabling the output

signal L and H levels to be chosen independently from the driver

supply voltages.

As an example, the input logic levels may be 0V and 1.8V, the

control logic may be powered by +5V and –5V, and the output L and

H levels may be varied anywhere over the range of -5.0 to +5.0V.

The output stage is capable of peak currents of up to ±2.0 amps,

depending on the supply voltages used and load capacitance.

The OE pin serves a dual purpose. First, its logic H level is used

to compute the threshold voltage level for the channel input level

translators. Secondly, when OE is low, the outputs are disabled,

with the A and C outputs high and the B and D outputs low. This

assists in properly pre-charging the coupling capacitors that may

be used in series in the gate drive circuit of an external PMOS and

NMOS. A built-in level shifter provides PMOS gate negative bias

drive. This enables the user-deﬁned damping control to generate

return-to-zero bipolar output pulses.

+10V

-8.0V

0.47μF

2.0k

10nF

Supertex

●

TC6320

TC2320

Tel: 408-222-8888

+100V

-100V

1.0μF

●

www.supertex.com

MD1812

Related parts for MD1812K6-G

MD1812K6-G Summary of contents

Page 1

... IND Supertex inc. General Description The Supertex MD1812 is a high-speed quad MOSFET driver designed to drive two N and two P-channel high voltage DMOS FETs for medical ultrasound applications but may be used in any application that needs a high output current for a capacitive load. The input stage of the MD1812 is a high-speed level translator that is able to operate from logic input signals of 1 ...

Page 2

... quiescent current NEGQ NEG I V average current average current average current NEG NEG Supertex inc. 16-Lead QFN 0.65mm pitch MD1812K6-G Pin Conﬁguration Value -0.5V to +13.5V V -0. +0. -0. +0. -7.0V to +0.5V -0.5V to +20V V -10V to V +0. -0.5V to GND +7.0V SS Product Marking +125°C -65° ...

Page 3

... Output sink resistance for OUTA-D SINK R Output source resistance for OUTA-D SOURCE R Output sink resistance for for OUTG SINK R Output source resistance for OUTG SOURCE I Peak output sink current SINK I Peak output source current SOURCE Supertex inc. (cont.) = -6.0V 3.3V Min Typ V -0 ...

Page 4

... VH to VL. The auxiliary output drive, OUTG, swings from VSS to VNEG, and drives the gate of an external P-channel MOSFET via a 2.0KΩ series resistor. Supertex inc. The voltages of VH and VL decide the output signal levels. These two pins can draw fast transient currents ...

Page 5

... OUTA Output driver. 14 VDD Supply voltage for high-side analog, level shifter, and gate drive circuit. 15 INA Logic input. Controls OUTA when OE is high Output enable logic input. Note: Thermal pad and pin #4, VNEG must be connected externally. Supertex inc. INB IND OUTC ...

Page 6

... This dimension is not speciﬁed in the JEDEC drawing. † This dimension differs from the JEDEC drawing. Drawings not to scale. Supertex Doc.#: DSPD-16QFNK64X4P065, Version C041009. (The package drawing(s) in this data sheet may not reﬂect the most current speciﬁcations. For the latest package outline information go to http://www.supertex.com/packaging.html.) does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives Supertex inc ...

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